Home / 1,474.24-2,211.60-486.77

Finding the Fourth Proportional to 1,474.24, 2,211.60 and 486.77

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Solution

The fourth proportional to 1,474.24, 2,211.60 and 486.77 is: 730.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,474.24 : 2,211.60 = 486.77 : x
  2. Step 2: Convert to fraction form
    1,474.24/2,211.60 = 486.77/x
  3. Step 3: Cross multiply
    1,474.24x = 2,211.60 × 486.77
  4. Step 4: Simplify right side
    1,474.24x = 1,076,546.06
  5. Step 5: Solve for x
    x = 1,076,546.06/1,474.24
  6. Step 6: Final answer
    x = 730.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.